– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Sat 31 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Sat 31 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Sat 31 Jan Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 31mm), heaviest during Sun morning. Very mild (max 10°C on Sat afternoon, min 5°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 15°C on Wed morning, min 9°C on Wed night). Wind will be generally light. | |||||||||||||||||
Saturday 31 | Sunday 1 | Monday 2 | Tuesday 3 | Wednesday 4 | Thursday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | |  | |  | | |  |  | | |  | |
light rain | some clouds | mod. rain | heavy rain | light rain | light rain | light rain | light rain | cloudy | some clouds | cloudy | light rain | some clouds | clear | clear | clear | clear | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
4 | — | 6 | 15 | 3 | 1.7 | 1.1 | 0.4 | — | — | — | 0.2 | — | — | — | — | — | — | |
max °C | 9 | 10 | 10 | 6 | 6 | 6 | 6 | 6 | 8 | 12 | 11 | 11 | 15 | 15 | 11 | 15 | 14 | 11 |
min °C | 9 | 10 | 6 | 5 | 6 | 5 | 5 | 6 | 7 | 10 | 10 | 11 | 13 | 12 | 9 | 13 | 11 | 11 |
8 | 9 | 4 | 3 | 4 | 3 | 3 | 5 | 7 | 10 | 10 | 11 | 13 | 12 | 9 | 13 | 11 | 11 | |
2450 | 2350 | 2200 | 1400 | 1500 | 1450 | 1350 | 1550 | 2050 | 2600 | 2650 | 2650 | 3050 | 3350 | 3150 | 3150 | 3200 | 3350 | |
Cloud base (m) | 850 | 650 | 750 | 600 | 700 | 700 | 600 | 1600 | 1600 | 2200 | 2500 | 2100 | 8350 | |||||
 | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — |
 | — | 5:04 | — | — | 5:06 | — | — | 5:07 | — | — | 5:08 | — | — | 5:10 | — | — | 5:12 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 31mm), heaviest during Sun morning. Very mild (max 10°C on Sat afternoon, min 5°C on Sun morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Wed morning, min 9°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.